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Vitamin niacinamide (vitamin B5)
Niacinamide, a form of vitamin B3, is used as a nutritional supplement and skincare ingredient supporting cellular metabolism and skin barrier function.
Mineral or nutrientUpdated May 15, 2026
Health score+2.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Low risk of irritation or sensitization at high topical levels, excessive oral intake may cause flushing
Benefits
Supports energy metabolism, skin barrier repair, and DNA repair
References
Waters containing Vitamin niacinamide (vitamin B5)
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